Physics

I define and study TQFTs which generalize the Dijkgraaf-Witten TQFT and can be described on a lattice using discrete 1-form and 2-form gauge fields. The gauge group is replaced by a gauge 2-group. It is proposed that 2-group TQFTs classify gapped...

The discovery of a 125 GeV SM-like Higgs boson along with the absence of additional new physics signals have reinvigorated studies of "simple" supersymmetry breaking sectors. One such paradigm relies on anomaly plus gravity mediation; this model...

Motivated by the connection between 4-manifolds and 2d N=(0,2) theories, we study the dynamics of a fairly large class of 2d N=(0,2) gauge theories. We see that physics of such theories is very rich, much as the physics of 4d N=1 theories. We...

I will review the low energy excitations and other observables in the strongly interacting finite density states described by holography.

References:
http://arxiv.org/abs/arXiv:1310.6334
and references therein.